education - no substitute
I am a firm proponent of education. Experience is a good teacher, but only if you take the time to learn from the experience. Have seen many individuals with 'years' of experience that I would not hire.
Had an electrician once, Said he had 30+ years experience.
Could not use a megger, could not draw a schematic diagram, was only a pipe bender / wire puller, I guess.
Had an 'HVAC mechanic' apply for a position, but could not draw the schematic diagram for a cooling unit with strip heat. Could not even draw a thermostat diagram. And yet he had 10 years experience which included service.
To me, experience allows a person to troubleshoot, maybe, 60% - 70% of problems - the rest are monkey-see-monkey-do.
With proper technical school training, that same tech could troubleshoot 80% to 90% of problems.
I believe in education!!!